75765769 has 4 divisors (see below), whose sum is σ = 75790080. Its totient is φ = 75741460.

The previous prime is 75765763. The next prime is 75765773. The reversal of 75765769 is 96756757.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96756757 = 2803 ⋅34519.

It is a cyclic number.

It is not a de Polignac number, because 75765769 - 2¹⁵ = 75733001 is a prime.

It is a super-2 number, since 2×75765769² = 11480903504322722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75765763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6649 + ... + 13990.

It is an arithmetic number, because the mean of its divisors is an integer number (18947520).

Almost surely, 2^75765769 is an apocalyptic number.

It is an amenable number.

75765769 is a deficient number, since it is larger than the sum of its proper divisors (24311).

75765769 is a wasteful number, since it uses less digits than its factorization.

75765769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24310.

The product of its digits is 2778300, while the sum is 52.

The square root of 75765769 is about 8704.3534510037. The cubic root of 75765769 is about 423.1467521892.

The spelling of 75765769 in words is "seventy-five million, seven hundred sixty-five thousand, seven hundred sixty-nine".